Using 2 different amp to power subs

Cartman · 12-17-2003, 06:47 PM

I have a MTX 4250D (400 watts RMS @ 2 ohms)right now and just won a 6500D (800 watts RMS @ 2 ohms) off ebay, can I wire these together so that if I got a (2) 4 ohm subs each would be getting 600 watts if I wire them in parallel.

Thanks

Alec · 12-17-2003, 08:10 PM

Um no, I don't think so. I've learned never to 1) stack amps in series and 2) never send 2 amps into 1 speaker.

*boominXplorer* · 12-17-2003, 08:34 PM

It wont work. If you had 2 of the same amps it will. All of the voice coils need to have the same wattage and inpendance to each voice coil. If not you have a good chance to blow your subs.

Cartman · 12-17-2003, 09:38 PM

Okay, this is what I was thinking of, basically each sub would be powered by both amps so all would be getting the same power. the red lines are both the + and - wires.
so amp 1 would be sending 200 watts to each and amp 2 would be sending 400 to each sub.

*boominXplorer* · 12-17-2003, 09:45 PM

one will get more power than the other. The + wire decides on how much power the speaker gets not the -. You also cannot wire amps together or let one amps + touch another.

*expo5.0* · 12-17-2003, 10:01 PM

this is a bad idea

you should sell em both and buy the 800a2 i have for sale

mhn3773 · 12-17-2003, 11:20 PM

it is feasable but ud have to have all the same amp..i was looking at the solox and they have a diagram to run 4 amps to it =)...boom boom

ewf · 12-18-2003, 12:51 AM

Cartman,

I don't think you can do it the way you're thinking. Let's just think about one speaker for a minute. Normally you would use one amp. No problem. Everybody knows how to do that. Some people, if they have a 2-channel amp, want to bridge the amp so that both channels are combined, which would double the amount of power into the one speaker. When you bridge an amp, you're doing nothing more than telling one channel (let's say the left channel in this case) to operate on the positive half of the waveform and the other channel (which would therefore be the right channel) to operate on the negative half. Voila! Your 2-channel amp is behaving like a 1-channel (mono) amp and you're getting double the power. Notice however, that both channels are not operating on the same part of the waveform at the same time. They are splitting responsibility - I'll work on one half and you can work on the other half.

The way this relates to what you're asking, is that the only way I know of that you can get two separate amplifiers to operate properly on a single load (either one speaker, or multiple speakers tied together), is if you can duplicate what you would get if you bridged two amplifier channels - one amp would need to operate on the positive half of the waveform and the other amp would need to operate on the negative half. Amplifiers don't automatically know how to do this. They need to have this feature built in. This is what Mhn3773 is referring to with the 4 amps. Kicker makes some amps that have what is called a strapping connection. Strapping is nothing more than bridging. When you connect the strapping jacks on 2 amps with this feature, each amp will work on the corresponding part of the waveform and not interfere with the other.

So in summary, to do what you want to do, you need two identical amps and they both have to have a "strapping" feature.

mhn3773 · 12-18-2003, 01:06 AM

^ round of applause i acctually understood =) lol if this keeps on going mabey ill be smart one day lol

edit..u know when u say in ur post ur gunna be smart and u dont really mean it..spell things right

lol woops

ewf · 12-18-2003, 01:11 AM

Hey Mhn3773,

Thanks for the vote of confidence, especially in the other thread. I'm glad I can be of help.

mhn3773 · 12-18-2003, 02:25 PM

and thank you for taking all the time to make some seriously helpfull posts keep up the good work =)

Cartman · 12-18-2003, 06:57 PM

Okay I guess I won't try it - the 6500D should be enough to power either on mtx 9500 series 10" or 2 MTX 8000 series 10's.

*expo5.0* · 12-18-2003, 06:59 PM

we may be able to work out a trade if your interested in which i get that smaller amp of yours and you get those subs.

Cartman · 12-18-2003, 07:31 PM

the 8000 series or the 9500?

Stuman78424 · 12-25-2003, 12:52 PM

one word..."POOF" if thats even a word

*expo5.0* · 12-25-2003, 01:11 PM

well i was thinking either of the subs actually depending on what you wanted.

i already picked up a comperable amp though

check out your pm box.

12-17-2003, 06:47 PM	#1
Cartman Wannabe Elite Explorer Waterloo, Ontario '96 Sport Join Date: Aug 2001 Posts: 537 Vehicle Specs (Original Poster)	Using 2 different amp to power subs I have a MTX 4250D (400 watts RMS @ 2 ohms)right now and just won a 6500D (800 watts RMS @ 2 ohms) off ebay, can I wire these together so that if I got a (2) 4 ohm subs each would be getting 600 watts if I wire them in parallel. Thanks __________________ Pioneer Premier DEH P-750MP HU, RF FNX 2514 components, Pioneer 6x8 2 way speakers, MTX 4244 amp, MTX 6500D, MTX 9512-44 Subwoofer, Stinger wiring, Streetglow interior neons. Westin Sportsmen Grille Guard Cartman's Website

12-17-2003, 08:10 PM	#2
Alec Elite Moderator Houston, Texas 2008 JK Join Date: Apr 2000 Posts: 16,061 Vehicle Specs	Um no, I don't think so. I've learned never to 1) stack amps in series and 2) never send 2 amps into 1 speaker. __________________ Alec "Dr. Candlepower" Rosenbaum Daily: 2008 JK Gone: EE "Splat", 2003 VW GTI VR6, 85 Bronco project

12-17-2003, 08:34 PM	#3
boominXplorer Elite Explorer Virginia Beach, Va 00 4x4 Mounty Join Date: Sep 2002 Posts: 6,029 Vehicle Specs	It wont work. If you had 2 of the same amps it will. All of the voice coils need to have the same wattage and inpendance to each voice coil. If not you have a good chance to blow your subs. __________________ 1998 Mountaineer 5.0 2wd - Mac intake, Ported intake, FMS headers, 3" Exhaust, E-fan, SCT tuned, Baumenn Shift Kit, MSD, 4.10 l/s, Lowered 3/2 on 18x9 Cobra r's, HID's 2002 F250 Crew Cab SB 7.3 Diesel 4x4 - 4" MBRP exhaust, AIH delete, SCT Livewire 2001 Ranger ext cab 4x4 - 5.0/4r70/4406 swap in progress (2) 97 Mountaineers for parts 98 Sport for Parts My eBay auctions

12-17-2003, 09:38 PM	#4
Cartman Wannabe Elite Explorer Waterloo, Ontario '96 Sport Join Date: Aug 2001 Posts: 537 Vehicle Specs (Original Poster)	Okay, this is what I was thinking of, basically each sub would be powered by both amps so all would be getting the same power. the red lines are both the + and - wires. so amp 1 would be sending 200 watts to each and amp 2 would be sending 400 to each sub. Attached Images __________________ Pioneer Premier DEH P-750MP HU, RF FNX 2514 components, Pioneer 6x8 2 way speakers, MTX 4244 amp, MTX 6500D, MTX 9512-44 Subwoofer, Stinger wiring, Streetglow interior neons. Westin Sportsmen Grille Guard Cartman's Website

12-17-2003, 09:45 PM	#5
boominXplorer Elite Explorer Virginia Beach, Va 00 4x4 Mounty Join Date: Sep 2002 Posts: 6,029 Vehicle Specs	one will get more power than the other. The + wire decides on how much power the speaker gets not the -. You also cannot wire amps together or let one amps + touch another. __________________ 1998 Mountaineer 5.0 2wd - Mac intake, Ported intake, FMS headers, 3" Exhaust, E-fan, SCT tuned, Baumenn Shift Kit, MSD, 4.10 l/s, Lowered 3/2 on 18x9 Cobra r's, HID's 2002 F250 Crew Cab SB 7.3 Diesel 4x4 - 4" MBRP exhaust, AIH delete, SCT Livewire 2001 Ranger ext cab 4x4 - 5.0/4r70/4406 swap in progress (2) 97 Mountaineers for parts 98 Sport for Parts My eBay auctions

12-17-2003, 10:01 PM	#6
expo5.0 Elite Explorer Red Wing, MN 1996 xlt Join Date: Oct 2001 Posts: 7,306 Vehicle Specs	this is a bad idea you should sell em both and buy the 800a2 i have for sale __________________ C43 ///AMG 390/440 @ wheels + tasteful show ICE and cosmetics Explorer Roadster- 5.0, bags, all one-off body, hasn't moved in 3 years- parting out. Tahoe and G35x daily drivers- stockish Specialized S-works and p2, Giant Trance X, Marin Pine Mountain

12-17-2003, 11:20 PM	#7
mhn3773 Wannabe Elite Explorer C.A 91 zuki Join Date: May 2003 Posts: 1,129 Vehicle Specs	it is feasable but ud have to have all the same amp..i was looking at the solox and they have a diagram to run 4 amps to it =)...boom boom

12-18-2003, 12:51 AM	#8
ewf Wannabe Elite Explorer Diamond Bar, CA 2004 Mountaineer Join Date: Dec 2003 Posts: 25 Vehicle Specs	Cartman, I don't think you can do it the way you're thinking. Let's just think about one speaker for a minute. Normally you would use one amp. No problem. Everybody knows how to do that. Some people, if they have a 2-channel amp, want to bridge the amp so that both channels are combined, which would double the amount of power into the one speaker. When you bridge an amp, you're doing nothing more than telling one channel (let's say the left channel in this case) to operate on the positive half of the waveform and the other channel (which would therefore be the right channel) to operate on the negative half. Voila! Your 2-channel amp is behaving like a 1-channel (mono) amp and you're getting double the power. Notice however, that both channels are not operating on the same part of the waveform at the same time. They are splitting responsibility - I'll work on one half and you can work on the other half. The way this relates to what you're asking, is that the only way I know of that you can get two separate amplifiers to operate properly on a single load (either one speaker, or multiple speakers tied together), is if you can duplicate what you would get if you bridged two amplifier channels - one amp would need to operate on the positive half of the waveform and the other amp would need to operate on the negative half. Amplifiers don't automatically know how to do this. They need to have this feature built in. This is what Mhn3773 is referring to with the 4 amps. Kicker makes some amps that have what is called a strapping connection. Strapping is nothing more than bridging. When you connect the strapping jacks on 2 amps with this feature, each amp will work on the corresponding part of the waveform and not interfere with the other. So in summary, to do what you want to do, you need two identical amps and they both have to have a "strapping" feature.

12-18-2003, 01:06 AM	#9
mhn3773 Wannabe Elite Explorer C.A 91 zuki Join Date: May 2003 Posts: 1,129 Vehicle Specs	^ round of applause i acctually understood =) lol if this keeps on going mabey ill be smart one day lol edit..u know when u say in ur post ur gunna be smart and u dont really mean it..spell things right lol woops Last edited by mhn3773; 12-18-2003 at 02:26 PM.

12-18-2003, 01:11 AM	#10
ewf Wannabe Elite Explorer Diamond Bar, CA 2004 Mountaineer Join Date: Dec 2003 Posts: 25 Vehicle Specs	Hey Mhn3773, Thanks for the vote of confidence, especially in the other thread. I'm glad I can be of help.

12-18-2003, 02:25 PM	#11
mhn3773 Wannabe Elite Explorer C.A 91 zuki Join Date: May 2003 Posts: 1,129 Vehicle Specs	and thank you for taking all the time to make some seriously helpfull posts keep up the good work =)

12-18-2003, 06:57 PM	#12
Cartman Wannabe Elite Explorer Waterloo, Ontario '96 Sport Join Date: Aug 2001 Posts: 537 Vehicle Specs (Original Poster)	Okay I guess I won't try it - the 6500D should be enough to power either on mtx 9500 series 10" or 2 MTX 8000 series 10's. __________________ Pioneer Premier DEH P-750MP HU, RF FNX 2514 components, Pioneer 6x8 2 way speakers, MTX 4244 amp, MTX 6500D, MTX 9512-44 Subwoofer, Stinger wiring, Streetglow interior neons. Westin Sportsmen Grille Guard Cartman's Website

12-18-2003, 06:59 PM	#13
expo5.0 Elite Explorer Red Wing, MN 1996 xlt Join Date: Oct 2001 Posts: 7,306 Vehicle Specs	we may be able to work out a trade if your interested in which i get that smaller amp of yours and you get those subs. __________________ C43 ///AMG 390/440 @ wheels + tasteful show ICE and cosmetics Explorer Roadster- 5.0, bags, all one-off body, hasn't moved in 3 years- parting out. Tahoe and G35x daily drivers- stockish Specialized S-works and p2, Giant Trance X, Marin Pine Mountain

12-18-2003, 07:31 PM	#14
Cartman Wannabe Elite Explorer Waterloo, Ontario '96 Sport Join Date: Aug 2001 Posts: 537 Vehicle Specs (Original Poster)	the 8000 series or the 9500? __________________ Pioneer Premier DEH P-750MP HU, RF FNX 2514 components, Pioneer 6x8 2 way speakers, MTX 4244 amp, MTX 6500D, MTX 9512-44 Subwoofer, Stinger wiring, Streetglow interior neons. Westin Sportsmen Grille Guard Cartman's Website

12-25-2003, 12:52 PM	#15
Stuman78424 Wannabe Elite Explorer Wetumpka, Alabama 98 Explorer Sport Join Date: Jun 2003 Posts: 89 Vehicle Specs	one word..."POOF" if thats even a word

12-25-2003, 01:11 PM	#16
expo5.0 Elite Explorer Red Wing, MN 1996 xlt Join Date: Oct 2001 Posts: 7,306 Vehicle Specs	well i was thinking either of the subs actually depending on what you wanted. i already picked up a comperable amp though check out your pm box. __________________ C43 ///AMG 390/440 @ wheels + tasteful show ICE and cosmetics Explorer Roadster- 5.0, bags, all one-off body, hasn't moved in 3 years- parting out. Tahoe and G35x daily drivers- stockish Specialized S-works and p2, Giant Trance X, Marin Pine Mountain